Question

Need help with 8,12!!!!!!!!

Answer 1

8 x = -12

12 a = 17

Explanation:

8

4x + 7 = -41

4x = -41 - 7

4x = -48

x = -48/4

x = -12

probe:

4*-12 + 7 = -41

-48 + 7 = -41

12

-4 - 2a = -38

-2a = -38 + 4

-2a = -34

a = -34/-2

a = 17

probe:

-4 - 2*17 = -38

-4 - 34 = -38

Answer 2

x = -12, a = 17

Explanation:

You can use algebraic techniques to simplify two-step equations. They have a constant on one side of the equation and a variable with a coefficient on the other. However, for algebraic equations, most will require you to add or subtract a constant from the side with the variable.

4x + 7 = -41 can be simplified algebraically. Subtract 7 from both sides and then divide by 4.

4x + 7 = -41

4x = -48

x = -12

-4 - 2a = -38 can also be simplified algebraically. Add 4 to both sides and then divide by -2.

-4 - 2a = -38

-2a = -34

a = 17